Quick synopsis of the four main updates:
Messenger Integration: This will let you see all the contacts on your Messenger Friends List on your Xbox 360 (and vice versa) and send them messages from your Xbox. All the usual 'appear offline' etc options will also be included, so you can keep a low profile if you just want to get on with some uninterrupted gaming.
Text Input Device: Still working without an official name, this nifty little piece of kit will make it easier to type and send messages through your Xbox without using a USB keyboard. Still haven't seen this, so I'll try to get more info on it soon.
New Achievement Pop-Ups: Now this is cool - instead of having to tap the Guide button every time you unlock an Achievement to see what you've won, the new Achievement Unlocked pop-up will give you the name of the Achievement and how many points you've earned. Simple, but brilliant.
Marketplace Blade: Yup, Marketplace is finally getting the presence it deserves on the Dashboard. The new Marketplace Blade will make it easier and quicker to find the content you need.
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Other New Features
Beyond Windows Live Messenger, the Spring Update for Xbox 360 includes hundreds of new features and enhancements including:
The Spring Update is free beginning the week of May 7 and will be easily accessible to every Xbox 360 owner through Xbox Live or on Xbox.com.
You may not even notice all the new features, but they are all designed to enhance your Xbox Live experience. Some of the other features in this upgrade include: